As problem of title, I have received the problem report from quality assurance department.
I would like to inform about problem report detail.
- Problem detail
Product ; ASTG12LVCB (E005389)
Problem contents ;
Discharge temp. error was occurred at this unit which had installed 3 years ago.
Technician found the trace of oil leak at indoor unit heat exchanger and drain pan. - Analysis result.
< Sink test by sample unit >
FGL found the leak from the pin of evaporator.
This leak’s cause was an ant's nest-like corrosion from out side
- Speculation of this problem’s cause.
FGL guess
the corrosion from outside have been proceeding due to operating environment. - Measure
For measure for corrosion from external environment factors,
FGL has plan that the piping material will change to oxygen‐free copper which suppress occurrence of the corrosion.
If schedule will be fixed, FGL will inform again.